# SIEKG vs critiK Academy

The clearest difference is in-app purchases: SIEKG at none against critiK Academy's 1. SIEKG also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.4). On price, update cadence and ads there is nothing between them.

Both are free to download. critiK Academy sells 1 one-off in-app purchase. SIEKG asks for nothing beyond the download.

SIEKG ships an update every 4 months, critiK Academy every 5 months. The most recent releases landed on November 2, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SIEKG | critiK Academy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Size | 41 MB | 85 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Sun Island Education Foundation Limited](https://appshunter.io/developer/1452183529) | [TagMango Inc](https://appshunter.io/developer/1611765353) |

## What reviewers say

### SIEKG

[App page](https://appshunter.io/ios/app/siekg/id1452183530)

**Features:** macOS Compatibility

**In-app purchases:** none


### critiK Academy

[App page](https://appshunter.io/ios/app/critik-academy/id6737198175)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Max Plan | $14.99 | one-time |


## Frequently asked questions

### Is SIEKG free?

SIEKG is free to download, with no in-app purchases.

### Is critiK Academy free?

critiK Academy is free to download, with in-app purchases available.

### Do SIEKG or critiK Academy have ads?

Neither SIEKG nor critiK Academy shows ads.

### Which is updated more often, SIEKG or critiK Academy?

SIEKG ships an update every 4 months, and critiK Academy every 5 months. Most recently, SIEKG was updated on November 2, 2026 and critiK Academy on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*